	/**
	 * url处理工具
	 * 
	 * @namespace Util
	 * @class date
	 */
 
	function GetArgsFromHref(sHref, sArgName){
		if(sHref == "this"){
			sHref = window.location.href;
		}
		 
      var args    = sHref.split("?");
      var retval = "";
   
      if(args[0] == sHref) /*参数为空*/
      {
           return retval; /*无需做任何处理*/
      } 
      var str = args[1];
      args = str.split("&");
      for(var i = 0; i < args.length; i ++)
      {
          str = args[i];
          var arg = str.split("=");
          if(arg.length <= 1) continue;
          if(arg[0] == sArgName) retval = arg[1];
      }
      return retval;
    }